Airfoil having improved impact and erosion resistance and method for preparing same
    3.
    发明申请
    Airfoil having improved impact and erosion resistance and method for preparing same 失效
    具有改进的耐冲击和耐腐蚀性的翼型及其制备方法

    公开(公告)号:US20070253825A1

    公开(公告)日:2007-11-01

    申请号:US11656974

    申请日:2007-01-24

    IPC分类号: F03B3/00

    摘要: A turbine airfoil having an improved impact and erosion resistance. The airfoil comprises: (a) a base segment having an impact resistant leading edge section proximate to the leading edge comprising a material having having a yield strength of least about 250 ksi and an elongation percentage of about 12% or less; and (b) an erosion resistant coating overlaying the base segment at least in the leading and trailing edge portions of the pressure side, the erosion resistant coating comprising at least one ceramic layer having at least one of the following properties: (1) an erosion value of at least about 200 g. of erodent to cause a thickness loss of about 15-20 microns; (2) an erosion volume loss value (V) of about 1.9 or less as defined by the equation V=H−0.18×E0.75×F−1.65 where H is hardness, E is elastic modulus and F is fracture toughness; and (3) an F value of at least about 1.5 MPa*m1/2. The erosion resistant coating can comprise alternating ceramic and metallic layers and is typically formed by a method involving the step of forming on the pressure side of the base segment of the airfoil in alternating fashion at least one ceramic layer and at least one metallic layer.

    摘要翻译: 具有改善的冲击和耐冲蚀性的涡轮机翼型。 翼型件包括:(a)具有靠近前缘的抗冲击前缘部分的基部段,包括具有至少约250ksi的屈服强度和约12%或更小的伸长率的材料; 至少在所述压力侧的前缘部和后缘部分覆盖所述基部段的抗侵蚀涂层,所述耐侵蚀涂层包括至少一个具有以下特性中的至少一个的陶瓷层:(1)侵蚀 值至少约为200g。 的腐蚀导致约15-20微米的厚度损失; (2)如等式V = H -0.18的限定的约1.9或更小的侵蚀体积损失值(V)x = 0.75×F -1.65 < SUP>其中H是硬度,E是弹性模量,F是断裂韧度; 和(3)F值至少约1.5MPa * m 1/2。 抗侵蚀涂层可以包括交替的陶瓷和金属层,并且通常通过以下方法形成,该方法包括以至少一个陶瓷层和至少一个金属层交替形成在翼型的基部段的压力侧上的步骤。

    Bond coat with low deposited aluminum level and method therefore
    4.
    发明申请
    Bond coat with low deposited aluminum level and method therefore 失效
    具有低沉积铝含量的粘结涂层和方法

    公开(公告)号:US20070128360A1

    公开(公告)日:2007-06-07

    申请号:US11295278

    申请日:2005-12-05

    IPC分类号: B05D7/22 C23C16/00

    摘要: A method for applying a NiAl based bond coat and a diffusion aluminide coating to a metal substrate comprises, in part, coating a portion of the external surface of the superalloy substrate, by physical vapor deposition with a layer of a NiAl based metal alloy, wherein the deposited NiAl based metal alloy includes a controlled amount of about 6 to 25 weight percent aluminum, wherein the deposited aluminum level of the NiAl based metal alloy is controlled to be about 50-100% of its final level after aluminizing to form a coated external portion; and subsequently, simultaneously aluminizing the coated external portion and a different surface of the superalloy substrate.

    摘要翻译: 将NiAl基键合涂层和扩散铝化物涂层施加到金属基底上的方法包括部分地通过物理气相沉积用NiAl基金属合金层涂覆超级合金基底的外表面的一部分,其中 沉积的NiAl基金属合金包括约6至25重量%的铝的受控量,其中将NiAl基金属合金的沉积铝含量控制在铝化后的最终水平的约50-100%以形成涂覆的外部 一部分; 并且随后对涂覆的外部部分和超合金基底的不同表面进行同时镀铝。

    PROCESS FOR INHIBITING SRZ FORMATION AND COATING SYSTEM THEREFOR
    6.
    发明申请
    PROCESS FOR INHIBITING SRZ FORMATION AND COATING SYSTEM THEREFOR 审中-公开
    抑制SRZ形成和涂层体系的方法

    公开(公告)号:US20050118334A1

    公开(公告)日:2005-06-02

    申请号:US10711240

    申请日:2004-09-03

    摘要: A process for reducing the incidence of a secondary reaction zone (SRZ) in alloys prone to SRZ formation, particularly superalloys that have a high refractory element content. The process finds use with articles having a wall region that defines external and internal surfaces on the exterior and within the article, respectively. Diffusion coatings are formed on the internal and external surfaces of the article, with at least the diffusion coating on the external surface comprising an additive layer and a diffusion zone that is beneath the additive layer and extends into the wall region. The additive layer and at least a portion of the diffusion zone of the external diffusion coating is then removed to define an exposed surface region on the exterior of the article. An overlay coating is then deposited on the exposed surface region.

    摘要翻译: 一种降低易发生SRZ合金的合金中次级反应区(SRZ)的发生率的方法,特别是具有高难熔元素含量的超级合金。 该方法与具有分别在外部和内部定义外部和内部表面的壁区域的制品一起使用。 在制品的内表面和外表面上形成扩散涂层,至少外表面上的扩散涂层包含一添加层和位于该添加层之下并延伸到该壁区域内的扩散区。 然后去除外部扩散涂层的添加剂层和扩散区域的至少一部分,以限定制品外部的暴露表面区域。 然后将覆盖涂层沉积在暴露的表面区域上。

    Method for Improving Resistance to CMAS Infiltration
    9.
    发明申请
    Method for Improving Resistance to CMAS Infiltration 审中-公开
    提高抗CMAS渗透性的方法

    公开(公告)号:US20090169752A1

    公开(公告)日:2009-07-02

    申请号:US11964960

    申请日:2007-12-27

    IPC分类号: B05D3/00 B05D7/00

    摘要: Methods for providing improved resistance to CMAS infiltration for hot section components of a gas turbine engine. Exemplary methods include coating a substrate with a thermal barrier coating system by overlying a bond coated substrate with an inner thermal barrier layer comprised of a thermal barrier material such as yttria-stabilized zirconia. A top layer, including a rare-earth aluminate, is deposited so as to overlie at least a portion of the inner layer. Deposition processes and coating thicknesses may be tailored to the type of component to be coated.

    摘要翻译: 提供对燃气涡轮发动机的热段部件的CMAS渗透的改进的抗性的方法。 示例性的方法包括通过用粘合剂涂覆的基底覆盖由热阻挡材料如氧化钇稳定的氧化锆构成的内部热障层,来涂覆具有热障涂层体系的基底。 包括稀土铝酸盐的顶层被沉积以覆盖至内层的至少一部分。 沉积工艺和涂层厚度可以根据要涂覆的部件的类型进行调整。

    Automotive tailgate
    10.
    发明申请
    Automotive tailgate 审中-公开
    汽车尾门

    公开(公告)号:US20060152029A1

    公开(公告)日:2006-07-13

    申请号:US11031295

    申请日:2005-01-07

    IPC分类号: B62D33/03

    CPC分类号: B60J5/103 B60J5/105

    摘要: The present invention discloses a passenger vehicle having a multi-position tailgate. The tailgate may be opened from a driver side or a passenger side. A retractable table for a tailgate is disclosed. The tailgate may also be opened in a third orientation, extending generally horizontally from the vehicle. A method for operating the tailgate is also disclosed.

    摘要翻译: 本发明公开了一种具有多位置后挡板的乘用车。 后挡板可以从驾驶员侧或乘客侧打开。 公开了一种用于后挡板的伸缩台。 后挡板也可以在第三方向上打开,大致水平地从车辆延伸。 还公开了一种用于操作后挡板的方法。